#!usr/bin/env python  
# -*- coding: utf-8 -*-
""" 
@author:Simon
@file: objdemo15.py 
@time: 2018/01/19 
"""
import logging
logging.basicConfig(level=logging.INFO)

s = '0'
n = int(s)

logging.info('n = %d' %n)

print(10/n)